Lawn-sprinkler.



W. E. EIGHHOPYP. LAWN SPRINKLER.

. l APPLICATION FILED NOV. 23, 1910. 1 ,068,872. Patented July 29, 1913.

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'Attorneys WALTER ELLSWORTH EICI-II-IOFF, OF SOUTH PASADENA, CALIFORNIA.

LAWN-SPRINKLER. Y

Specification of Letters Patent.

Patented July 29, 1913.

Application filed November 23, 1910. Serial No. 593,878.

To all whom 25 may concern:

Be itknown that I, VALTER-E. EIGHI-Iorr, a citizen of the United States,residing at South Pasadena, in the county of Los Angeles and State ofCalifornia, have invented a new andv useful Lawn-Sprinkler, of which thefollowing is a specification.

This invention relates to lawn sprinklers, one of its objects being toprovide a device of this character in the form of a perforated pipesupported at its ends for angular adjustment upon bases designed tocontact with the ground, there being improved Vmeans carried by the pipeand brackets for holding the pipe inV any position to which it may beadjusted angularly. v

With the above and other objects in view, the invention resides in thegeneral construction and arrangement of parts set forth in the appendedclaim and illustrated in the accompanying drawings, in which- Figure 1is a perspective view of the device. Fig. 2 is a view partly inelevation and partly in longitudinal section, of the device. Fig. 3 is adetail view in elevation of a portion of the device, this viewillustrating the means for limiting the angular adjustment of thesprinkler pipe. Fig. l is a vertical section view on the line 4-4 ofFig. 3. Fig. 5 is a top plan view of a portion of the sprinkler pipeshowing the arrangement of the perforations therein. Fig.

'G is a cross sectional view through a modied form of sprinkler pipe.Fig. 7 is a top plan view of a modied form of base for supporting thepipe, the same being shown in condition prior to mounting of the pipethereon.v Fig. 8 is a duplicate view illustrating other forms of basesfor supporting the pipe. Fig. 9 is an enlarged perspective view of aportion of the perforated pipe.

In the drawings, the sprinkler is illustrated as embodying spaced basesone indicated by the numeral 10 and the other by the numeral 11. Vhilethe bases, in themselves, are identical in construction, the brackets onthe basesfor supporting the sprinkler pipe differ in construction. Eachbase proper comprises a flat circular bottom 12 having an upstandingperipheral flange 13 formed at its upper edge with an outstanding flange14. The bottom 12 of each base is formed with a number of perforations15 preferably formed by indenting the under side of the bottom. As aconsequence, the openings 15 taper upwardly and the passage of the baseover the surface of the lawn to be. sprinkled, 'is not interfered with.While the bases 10 and 11 are preferably constructed as above describedand as shown in Figs. 1 and 2 of the drawings, they may have theirbottoms formed with rounded projections or with indent-ations as shownin the several views of Fig. 8. It will be readily understood at thispoint that by forming the bottom 12 of each base withperforations,ventilation is provided for beneath the bottom of the baseand consequently the portion of the lawn upon which the base rests, willnot be burned by the base when said base is heated by the sun. s

Secured upon the lbase 10 is an upstanding bracket 16 and also fixedupon the base at a point diametrically opposite the bracket 16 is asecond bracket 17 formed with a slot 18 extending circumferentiallythereof through an arc of substantially 1800. A bracket 19 is fixed uponthe base 11 and is similar in construction to the bracket 16.

The sprinkler pipe of the device is indicated by the numeral 20 and isfitted for angular adjustment about its axis, in the brackets 16 and 17and at its opposite end in the bracket 19. A stud 21 upon the pipeprojects into the slot 18 and serves not only to hold the pipe againstslipping through the brackets in the direction of its length, but alsoto limit its angular adjustment. An upstanding ear 22 is fixed upon thebase 11 at a point diametrically opposite the bracket 19 and a threadedstud 23 carried by the pipe 20 at its end opposite the end adjacentwhich the stud 21 is y located, projects through an opening 24 in thisear 22 and a set nut 25 is threaded upon the stud 23 and bears againstthe said ear, this set nut serving as a means for holding the pipe atthe desired angular adjustment. It is preferable that the ear 22 beformed with a right angularly extending portion 26 formed with anopening 27 through which may be secured one end of a pull rope orsimilar device by means of which the sprinkler-may be drawn over thesurface to be sprinkled, thus enabling the user of the device tosprinkle a large area without having to walk upon the sprinkled surface.The sprinkler pipe 20 is preferably formed fro-m comparatively thinsheet metal blank so as to render the device inexpensive to manufactureand light in weight whereby it may be readily drawn over the surface tobe sprinkled and in forming this pipe Vfrom the sheet metal blank, thepipe is so folded as to afford a reinforcing rib 28 extending from endto end of the pipe along its under side. At each end, the rib 28 is bentor folded against the pipe as at 29 so that the pipe, at its ends, iscircular in cross section and will rotatably iit in the brackets 16, 17and 19 provided for its support. It will be readily understood thatinasmuch as the pipe is made from comparatively thin sheet metal,without the provision of the reinforcing rib 28, there would be atendency of the pipe to bend or sag at some point between its ends,particularly in view of the weight of the water within the pipe. Thisrib, however, depending` from the under side of the pipe Iand extendingthroughout substantially the entire length thereof, prevents suchsagging or bending of the pipe. In its upper side, the pipe is formedwith a plurality of series of openings indicated by the numeral 29".Each series of openings extend spirally of the pipe and the series areso relatively located that the end opening of each series will beopposite the opening at the adjacent end of the next adjacent series,circuinferentially. By thus arranging each series of openings and sorelatively arranging the series, a plurality of streams of water will beejected from the pipe and will strike the surface to be sprinkled atvarious distances from the pipe, the area to be sprinkled being thusevenly proportioned. Instead of forming the pipe 20 with a singlereinforcing rib extending along its under side, its said under side maybe formed with parallel ribs indicated by the numeral 30, as clearlyshown in Fig. 6 of the drawings.

In Fig. 7 of the drawings there is shown a modified form of base andthis form embodies an integral ear 31 which may be bent Copies of thispatent may be obtained for dei-stood that the sprinkler -pipe may bereadily adjusted to sprinkle a greater or less area at one time. Y

In order that a water supply hose may be readily connected to thesprinkler pipe, there is fitted in that end of the pipe opposite the endin which the threaded stud is located, a thimble 33 into which is fittedand secured a nipple 34 of a coupling 35 into which the male element ofsuch a coupling, carried by the water supply hose, may be readilyfitted.`

That is claimed is:

In a lawn sprinkler, spaced bases, a perfoi-ated pipe supported atitsends between the bases for angular adjustment about its axis, one ofthe bases having an upstanding apertured bracket, a stud vcarried at oneend of the pipe and engaging through the aperture in the bracket, a setnut threaded upon the stud and arranged to hold the pipe at angularadjustment, and means at the other end of the pipe for connection with awater supply hose.

In testimony that I claim the foregoing as my own, I have hereto atixedmy signature in the presence of two witnesses.

WALTER ELLSWORTH EICHHOFF.

lVitnesses:

J. C. EUBELL, A. VRIGHT.

ve cents each, by addressing the Commissioner of Patents, Washington, D.C.

